People on inflatable boats enjoy the weather on the Lake Lucerne in Sisikon, Switzerland, August 5, 2018. (Photo by Denis Balibouse/Reuters)

Aerial view of tourists cooling off at a water park in summer on June 27, 2023 in Zhengzhou, Henan Province of China. Zhengzhou Meteorological Observatory on June 27 issued an orange alert for high temperatures. (Photo by VCG/VCG via Getty Images)

Flemish Minister President Jan Jambon pictured in the Danish pavilion during the official opening of the Belgian pavilion at the 59th Venice Biennale – La Biennale di Venezia, International Art Exhibition, Thursday 21 April 2022, in Venice, Italy, Thursday 21 April 2022. Belgian artist Alys will present “The Nature of the Game”, an exhibition that will reveal a selection of films and a series of paintings. (Photo by James Arthur Gekiere/Belga Mag/Belga via AFP Photo)

Palestinian children warm themselves by a fire on a stormy day at Shati (beach) refugee camp in Gaza City January 18, 2016. (Photo by Mohammed Salem/Reuters)

Boys play with water as they celebrate Myanmar's New Year Water Festival of Thingyan in Yangon, April 13, 2016. (Photo by Soe Zeya Tun/Reuters)

Devotees perform religious rituals by splashing holy water during the Madhav Narayan Festival, a month-long event dedicated to Lord Madhav Narayan, an incarnation of Lord Vishnu in Thacho, Lalitpur, Nepal on February 10, 2025. Devotees also carry butter lamps and blow conch shells (shankha) as part of the sacred observance. (Photo by Safal Prakash Shrestha/ZUMA Press Wire)

Soldiers of China's People's Liberation Army (PLA) jump as part of their winter training in temperature of negative 26 degrees Celsius at China's border with Russia in Heihe, Heilongjiang province, December 14, 2015. (Photo by Reuters/Stringer)

“Warming up”. This photo I capture in the early afternoon, the animal species of lemurs fly. Photo location: Sambas, West Kalimantan, Indonesia. (Photo and caption by Hendy Mp/National Geographic Photo Contest)